A year ago, I applied for a position that would have been a promotion for me within my company. I didn't get the job, but I was asked if I would be willing to fill in from time to time when some of the regulars take vacation, call in sick, etc. I thought it was a good idea and would give me the experience I need to get the next promotion. The problem is, I've found that I really don't like the job. In fact, the promotion job has less responsibilities than my current position! Whenever I fill in, I'm bored all day trying to find stuff to do to pass the time. Now, I want out of it. I'm just not sure how to tell my boss. I'm also doing some schooling and job training on the side so that I can eventually leave the company and go into a different field. I'm near the end of my schooling, and would really like to use my time off to work on my studies and not fill in for my coworkers. Help! How do I get out of this?!
My biggest concern is that if I tell my boss I'm no longer interested in filling in for the promotion job, I'm essentially announcing that I don't see myself having a future with the company.